I doubt that these two sources are in fact comparable. The Tiger II figures are from technical specifications and the comparable figures for the Panther/Jagdpanther are (Spielberger: "Der Panzer-Kampfwagen Panther.."):Christian Ankerstjerne wrote: Certainly - better drive train.
Just for the record, the speed of the Tiger II was:
Maximum speed: 41.5km./h.
Sustainable roadspeed: 38km./h.
Sustainable cross-country speed: 15-20km./h.
(Germany's Tiger Tanks: VK 45.02 to Tiger II)
Maximum speed: 30km./h.
Sustainable roadspeed: 20km./h.
Sustainable cross-country speed: 15km./h.
Maximum speed: 46 km/h
Sustainable roadspeed: 33km/h
Sustainable cross-country speed: 25km/h
The figures quoted in the Jagdpanther manual may be more realistic, but I doubt they are comparable with the technical data. 75/20a was not a technical manual but a field manual dealing with the deployment of the Jagdpanther in combat.
It would also seem rather strange that the Panther and Jagdpanther who weighed nearly the same and shared all their automotive components would have drastically different performance!
One problem the Tiger II shared with the later production Tiger I was the damage to track, roadwheels and suspension arms caused by the use of steel-rimmed roadwheels:
- The clearance between the roadwheels and the centerguide on the track was too small to accomodate the differences in individual roadwheels.
- The suspension arms were loaded unevenly which caused them to react differently to wear
- Only the inner part of the track was carrying the load, leading to bending of the track-pins, making the track stiff and would eventually cause the track to sever or lock.
As for the Soviet tests (http://www.battlefield.ru/library/books ... pons7.html), it was concluded by 1945 that the Tiger II had the following....:
The chassis is complex and is not durable.
It is unclear to me what they mean by that?
The steering mechanism is complex and expensive.
A 70-ton tank needed an advanced steering system in order to function properly in the field and the cost was apparently considered acceptable by the Germans. They tried to do the Panther steering on the cheap and that was not a particular succes...!
The side running gear is extremely unreliable.
I suspect this would refer to the final drives of the Tiger II. If so, it was a feature it shared with other overweight German tanks like the Hetzer and Panzer IV as well as the Panther. In the latter, you can point to a faulty design, in case of the other two, the cause was likely a combination of the tanks having gained 25-50% since their basic components had been designed and the use of inferior materials in production. The Tiger IIs produced prior to July 1944 apparently had faulty final drives as well, the problem being corrected in late June 1944.
The radius of action is 25% inferior to the "IS"-tanks.
Hardly surprising given that the Tiger ran on petrol and weighed an additional 25 tons...
The ammunition (except in the turret recess) is awkwardly located.
Possibly, but then again: The Tiger II carried 22 rounds in the easily accessible turret rack while the IS-II only carried 28 rounds, period. The Tiger had an additional 48 rounds in the hull for a total of 70. The real problem was that penetrations in the turret would lead to ammunition fires and causing the loss of the tank and possibly the turret crew. At least one Tiger unit stopped using the turret racks because of this (sPzAbt 501).
The excessive size and weight of the tank do not correspond to the tank's armor protection and firepower.
A good point, but seems to reflect a difference in overall design philosophy rather than any particular flaw in the Tiger II design....?
As for the Jagdpanther-Tiger II comparison, the Jagdpanther was probably less reliable than the Tiger II. At least the combat reports of Jagdtiger units reads like a mechanical horror story and there are reports of at least one Tiger II battalion doing a 250 km roadmarch without any serious mechanical mishaps (sPzAbt 503 Oct. 1944).
This is a much more happy story than that of sPzAbt 501 - the same unit referred to by http://www.battlefield.ru/library/battles/battle16.html - who had most of the battalions tanks brake down due to failure of the final drives during a 40-50km roadmarch in August 1944. Could be that the battalions Tigers had the early type of final drive because they apparently recieved a modified unit soon after (Jentz: "Germany's Tiger Tanks: VK 45.02 to Tiger II", Schneider: "Tiger im Kampf").